Help:Lua debugging: Difference between revisions

Revision as of 14:18, 2 November 2020

Revision as of 14:19, 2 November 2020

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:* '''Invalid function name:''' &nbsp; <code>len = string.long(my_str)</code> - The string-length operator is hash mark '#' (as in: <code>#my_str</code>), or use function '<code>string.len(my_str)</code>' but trying to use unknown function '<code>string.long(my_str)</code>' will successfully pass during the pre-compile of edit-save, yet it will hit "Script error" when that portion of the Lua script is executed.

There are many other causes of "<span style="color:maroon">{{Script error</span>}}" but always look for the potential to have an unset, uninitialized variable which might stop the program at that point.

== Saving fall-back stable versions ==